Surviving the cold winter days...
How Birds Survive the Cold: Feathers + Food = Warmth
On cold winter days I am always astounded that there are any birds left alive, especially considering that most winter feeder visitors weigh in around 10–25 grams (the weight of 2-5 nickels)! But it turns out that birds employ many of the same strategies I was using inside my house—plus a couple...

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